Simulation and Testing of a Heat Pipe Tempered Injection-Mold-Mold vs.Conventional Water-Based Cooling

摘要

An injection mold,developed by the Bielefeld University of Applied Science (FH Bielefeld),can be tempered via water or heat pipes (Figure 1).The practical validation shows the comparison between conventional water based tempering and the technology using heat pipes,focusing on cycle time and temperature at the cavity.Regarding cycle time,these new Heat pipes operate as efficiently as the water-based technique,but they need less energy input and allow lower complex mold design.The heat flux simulation of the mold is highly sophisticated.The deviation between the real process and the simulation shows temperature differences smaller than 5°C.